This manuscript details the impact of stabilizing agents on the structural, optical properties of Ag@SnO₂ core – shell nanoparticles and its biological applications. Three different stabilizing agent viz. Poly Vinyl Pyrrolidone (PVP), zeroth generation triazolyl glycodendrimer and zeroth generation triazolyl chalcone dendrimer were used as stabilizers in the synthesis of Ag@SnO₂ nanoparticles. The results were compared to study their effect on the structural and optical properties of the synthesized samples. The structural parameters of the samples were investigated by XRD analysis, FESEM and HRTEM images. The presence of SnO₂ shell on the Ag core was also corroborated by XPS results. The XRD data was used for refining and characterizing the elements present in the sample by Reitveld method. The average crystallite size, dislocation density, lattice parameters (a, c), lattice strain of the samples were calculated using XRD measurements. Williamson – Hall (W-H) method and Size – Strain Plot (SSP) method were used to calculate the lattice strain of the synthesized sample. The concentric rings of the SAED pattern and the lattice fringe images exhibited the interplanar d-spacing values and the results were compared with XRD measurements. The optical properties of the samples were investigated using UV–Vis spectra and the band gap energy were calculated using Tauc plot. The Photoluminescence (PL) studies of the Ag@SnO₂ core – shell nanoparticles with the three stabilizing agents are also discussed in this work. The antibacterial and antifungal activities of the chalcone dendrimer stabilized Ag@SnO₂ core – shell nanoparticles were tested against the pathogens Bacillus subtilis, Proteus mirabilis, Candida albicans and Aspergillus niger.

该手稿详细介绍了稳定剂对Ag @ SnO ₂核-壳纳米粒子的结构，光学性质及其生物学应用的影响。三种不同的稳定剂。聚乙烯吡咯烷酮（PVP），第0代三唑基糖类树状大分子和第0代三唑基查尔酮树状大分子被用作Ag @ SnO ₂纳米粒子合成中的稳定剂。比较结果以研究它们对合成样品的结构和光学性质的影响。通过XRD分析，FESEM和HRTEM图像研究了样品的结构参数。SnO ₂的存在XPS结果也证实了Ag核上的空壳。XRD数据通过Reitveld方法用于精炼和表征样品中存在的元素。使用XRD测量来计算样品的平均微晶尺寸，位错密度，晶格参数（a，c），晶格应变。Williamson-Hall（WH）方法和Size-Strain Plot（SSP）方法用于计算合成样品的晶格应变。SAED图案和晶格条纹图像的同心环显示出平面d间距值，并将结果与​​XRD测量值进行比较。使用UV-Vis光谱研究了样品的光学特性，并使用Tauc图计算了带隙能量。Ag @ SnO ₂的光致发光（PL）研究核心-带有三种稳定剂的壳纳米粒子在本文中也进行了讨论。查尔酮树枝状大分子稳定的Ag @ SnO ₂核壳纳米粒子对枯草芽孢杆菌，变形杆菌变形杆菌，白色念珠菌和黑曲霉的抑菌和抑菌作用。